Republican governors scored easy political points by rejecting President Barack Obama’s plan to enroll more poor people in government health insurance. Now Republican leaders in Georgia and Mississippi may be bailing out hospitals that will lose funding they would have gotten from Obama’s health care law. South Carolina’s leaders increased payments to some hospitals in a push to improve rural health, though the extra money likely placated hospital officials who might otherwise have pressured Republicans to adopt the Democratic plan. The basic problem is simple: Obama’s overhaul is not being implemented as was planned. Its designers assumed that very few...